SpringerLink (Online service), Land, R., & Bayne, S. (2011). Digital difference: Perspectives on online learning. SensePublishers.
芝加哥风格引文SpringerLink (Online service), Ray Land, 与 Siâ Bayne. Digital Difference: Perspectives on Online Learning. Rotterdam: SensePublishers, 2011.
MLA引文SpringerLink (Online service), et al. Digital Difference: Perspectives on Online Learning. SensePublishers, 2011.
警告：这些引文格式不一定是100％准确.